The sprite settings require you to add an image (which you can get from Bento.assets), tell what the width and height is and how the animations are defined. Spritesheets should be divided into equal sized images like so:

The width and height of each frame is 32 x 32. In case you don't know the image width/height beforehand, you can also assign frameCountX and frameCountY. Which in this case would be 4 x 4. Use whichever method you need.

From here you can define animations. The frames are counted starting from 0 (the top left). In this case, the top right would be 3. The frame number continues as 4 on the second row. In this bunny example, the walking animation are frames 4 to 9.

(To do: loading animations from multiple images)

Making levels in Tiled

Download Tiled and install. Make a new tileset and make sure the name is the same as the filename.When placing objects: make a tilesheet for objects (or use an existing one). Right click on a tile for Tile Properties -> Add a custom property called "module". The value should be the name of the module you want to spawn there.